Modify order number to order reference loyalty

[cip_invest]

Hi

 

I want to modify under my account, module loyalty to display order reference instead order number

 

nr.000052 23-04-2014 20:53:44 20 Already converted nr.000054 24-04-2014 18:01:47 3 Awayting validation

 

and i want to be

JNDMGHBIY

AWJTYVGXQ

 

The file its loyalty.tpl but i dont find the solution

 

Thanks